From f0f3961326a855740b761732205bfc4c4e8449b5 Mon Sep 17 00:00:00 2001
From: Egor Yusov <egor.yusov@gmail.com>
Date: Sun, 17 Nov 2019 09:24:07 -0800
Subject: D3D11 and D3D12 backends: fixed issue with resolving typeless
 resources

---
 .../GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp     | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'Graphics/GraphicsEngineD3D11')

diff --git a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
index 93e7362c..974ee98f 100755
--- a/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
+++ b/Graphics/GraphicsEngineD3D11/src/DeviceContextD3D11Impl.cpp
@@ -2064,7 +2064,19 @@ namespace Diligent
 
         auto Format = ResolveAttribs.Format;
         if (Format == TEX_FORMAT_UNKNOWN)
-            Format = SrcTexDesc.Format;
+        {
+            const auto& SrcFmtAttribs = GetTextureFormatAttribs(SrcTexDesc.Format);
+            if (!SrcFmtAttribs.IsTypeless)
+            {
+                Format = SrcTexDesc.Format;
+            }
+            else
+            {
+                const auto& DstFmtAttribs = GetTextureFormatAttribs(DstTexDesc.Format);
+                DEV_CHECK_ERR(!DstFmtAttribs.IsTypeless, "Resolve operation format can't be typeless when both source and destination textures are typeless");
+                Format = DstFmtAttribs.Format;
+            }
+        }
 
         auto DXGIFmt = TexFormatToDXGI_Format(Format);
         auto SrcSubresIndex = D3D11CalcSubresource(ResolveAttribs.SrcMipLevel, ResolveAttribs.SrcSlice, SrcTexDesc.MipLevels);
-- 
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